/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.crazymaker.servlet.container.netty.resource;

import lombok.extern.slf4j.Slf4j;

import java.io.File;
import java.io.InputStream;
import java.net.MalformedURLException;
import java.net.URL;
import java.security.cert.Certificate;
import java.util.jar.Manifest;

@Slf4j
public class JarResourceRoot extends AbstractResource
{


    private final File base;
    private final String baseUrl;
    private final String name;

    public JarResourceRoot(WebResourceRoot root, File base, String baseUrl,
                           String webAppPath)
    {
        super(root, webAppPath);
        // Validate the webAppPath before going any further
        if (!webAppPath.endsWith("/"))
        {
            throw new IllegalArgumentException(
                    "jarResourceRoot.invalidWebAppPath:" + webAppPath);
        }
        this.base = base;
        this.baseUrl = "jar:" + baseUrl;
        // Extract the name from the webAppPath
        // Strip the trailing '/' character
        String resourceName = webAppPath.substring(0, webAppPath.length() - 1);
        int i = resourceName.lastIndexOf('/');
        if (i > -1)
        {
            resourceName = resourceName.substring(i + 1);
        }
        name = resourceName;
    }

    @Override
    public long getLastModified()
    {
        return base.lastModified();
    }

    @Override
    public boolean exists()
    {
        return true;
    }

    @Override
    public boolean isVirtual()
    {
        return false;
    }

    @Override
    public boolean isDirectory()
    {
        return true;
    }

    @Override
    public boolean isFile()
    {
        return false;
    }

    @Override
    public boolean delete()
    {
        return false;
    }

    @Override
    public String getName()
    {
        return name;
    }

    @Override
    public long getContentLength()
    {
        return -1;
    }

    @Override
    public String getCanonicalPath()
    {
        return null;
    }

    @Override
    public boolean canRead()
    {
        return true;
    }

    @Override
    protected InputStream doGetInputStream()
    {
        return null;
    }

    @Override
    public byte[] getContent()
    {
        return null;
    }

    @Override
    public long getCreation()
    {
        return base.lastModified();
    }

    @Override
    public URL getURL()
    {
        String url = baseUrl + "!/";
        try
        {
            return new URL(url);
        } catch (MalformedURLException e)
        {
            if (log.isDebugEnabled())
            {
                log.debug(("fileResource.getUrlFail:" + url), e);
            }
            return null;
        }
    }

    @Override
    public URL getCodeBase()
    {
        try
        {
            return new URL(baseUrl);
        } catch (MalformedURLException e)
        {
            if (log.isDebugEnabled())
            {
                log.debug("fileResource.getUrlFail:" + baseUrl);
            }
            return null;
        }
    }


    @Override
    public Certificate[] getCertificates()
    {
        return null;
    }

    @Override
    public Manifest getManifest()
    {
        return null;
    }
}
